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(2021 FH)
Classification: Apollo [NEO]          SPK-ID: 54132049
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5900210788981781 0.00033516  
a 2.217784580080573 0.0017425 au
q .9092449293776905 2.8909e-05 au
i 3.503760634931797 0.0013572 deg
node 2.987151784458142 5.7509e-05 deg
peri 220.4987699544436 0.00054587 deg
M 20.66907453285121 0.023074 deg
tp 2459327.237845500516
(2021-Apr-22.73784550)
0.0043099 TDB
period 1206.361493359745
3.30
1.4218
0.003893
d
yr
n .2984180131590503 0.0003517 deg/d
Q 3.526324230783456 0.0027707 au
  Orbit Determination Parameters
   # obs. used (total)      94  
   data-arc span      5 days  
   first obs. used      2021-03-18  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .30186  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-31 06:00:21  

Additional Information
 Earth MOID = .000378148 au 
 Jupiter MOID = 1.47674 au 
 T_jup = 3.398 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 26.73   .29101 E2021N49 autocmod 2.9c

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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